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Step * of Lemma bag-empty-append

∀[as:Top]. ({} + as ~ as)
BY
{ (Reduce 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[as:Top].  (\{\}  +  as  \msim{}  as)


By

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Latex:
(Reduce  0  THEN  Auto)

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